| argentina | | helicotylenchus dihystera | species | 2 | 0 |
| argentina | | helicotylenchus paraplatyurus | species | 4 | 0 |
| belgium | bruxelles-capitale | helicotylenchus varicaudatus | species | 1 | 0 |
| belgium | flemish region | helicotylenchus sp. sas-2006 | species | 1 | 0 |
| brazil | | helicotylenchus multicinctus | species | 2 | 0 |
| brazil | parana | helicotylenchus dihystera | species | 1 | 0 |
| china | | helicotylenchus digonicus | species | 3 | 0 |
| china | | helicotylenchus dihystera | species | 72 | 0 |
| china | | helicotylenchus indicus | species | 4 | 0 |
| china | | helicotylenchus microcephalus | species | 9 | 0 |
| china | | helicotylenchus microlobus | species | 13 | 0 |
| china | beijing | helicotylenchus dihystera | species | 1 | 0 |
| china | beijing | helicotylenchus pseudorobustus | species | 2 | 0 |
| china | fujian | helicotylenchus dihystera | species | 3 | 0 |
| china | fujian | helicotylenchus multicinctus | species | 1 | 0 |
| china | hainan | helicotylenchus sp. thp-2012 | species | 1 | 0 |
| china | henan | helicotylenchus digonicus | species | 1 | 0 |
| china | jiangxi | helicotylenchus dihystera | species | 4 | 0 |
| china | shandong | helicotylenchus digonicus | species | 1 | 0 |
| china | shandong | helicotylenchus dihystera | species | 1 | 0 |
| china | xinjiang | helicotylenchus digonicus | species | 1 | 0 |
| china | xinjiang | helicotylenchus minzi | species | 2 | 0 |
| china | yunnan | helicotylenchus microcephalus | species | 2 | 0 |
| colombia | | helicotylenchus dihystera | species | 25 | 0 |
| colombia | | helicotylenchus multicinctus | species | 4 | 0 |
| germany | | helicotylenchus digonicus | species | 1 | 0 |
| germany | | helicotylenchus pseudorobustus | species | 2 | 0 |
| germany | north rhine-westphalia | helicotylenchus pseudorobustus | species | 3 | 0 |
| greece | | helicotylenchus microlobus | species | 6 | 0 |
| greece | | helicotylenchus vulgaris | species | 2 | 0 |
| greece | crete region | helicotylenchus multicinctus | species | 2 | 0 |
| india | | helicotylenchus multicinctus | species | 5 | 0 |
| indonesia | | helicotylenchus dihystera | species | 1 | 0 |
| iran | | helicotylenchus pseudorobustus | species | 1 | 0 |
| iran | | helicotylenchus scoticus | species | 2 | 0 |
| iran | | helicotylenchus vulgaris | species | 5 | 0 |
| iran | fars province | helicotylenchus digonicus | species | 0 | 1 |
| iran | kermanshah province | helicotylenchus scoticus | species | 1 | 0 |
| ireland | | helicotylenchus pseudorobustus | species | 1 | 0 |
| ireland | | helicotylenchus varicaudatus | species | 2 | 0 |
| italy | | helicotylenchus digonicus | species | 1 | 0 |
| italy | | helicotylenchus microlobus | species | 3 | 0 |
| italy | apulia region | helicotylenchus microlobus | species | 2 | 0 |
| italy | marche region | helicotylenchus pseudorobustus | species | 1 | 0 |
| italy | marche region | helicotylenchus vulgaris | species | 3 | 0 |
| japan | chiba prefecture | helicotylenchus sp. 2010_033 | species | 1 | 0 |
| japan | ibaraki prefecture | helicotylenchus dihystera | species | 3 | 0 |
| japan | okinawa prefecture | helicotylenchus dihystera | species | 4 | 0 |
| kenya | | helicotylenchus dihystera | species | 2 | 0 |
| new zealand | | helicotylenchus depressus | species | 2 | 0 |
| new zealand | | helicotylenchus pseudorobustus | species | 8 | 0 |
| new zealand | bay of plenty | helicotylenchus pseudorobustus | species | 2 | 0 |
| nigeria | | helicotylenchus dihystera | species | 2 | 0 |
| nigeria | | helicotylenchus multicinctus | species | 2 | 0 |
| poland | | helicotylenchus canadensis | species | 2 | 0 |
| poland | | helicotylenchus digonicus | species | 4 | 0 |
| poland | | helicotylenchus pseudorobustus | species | 3 | 0 |
| poland | | helicotylenchus varicaudatus | species | 1 | 0 |
| portugal | | helicotylenchus digonicus | species | 1 | 0 |
| portugal | | helicotylenchus dihystera | species | 3 | 0 |
| portugal | | helicotylenchus varicaudatus | species | 1 | 0 |
| russia | | helicotylenchus digonicus | species | 2 | 0 |
| russia | | helicotylenchus microlobus | species | 2 | 0 |
| russia | | helicotylenchus pseudorobustus | species | 1 | 0 |
| russia | | helicotylenchus vulgaris | species | 3 | 0 |
| russia | moscow city | helicotylenchus sp. sas-2006 | species | 2 | 0 |
| slovakia | | helicotylenchus varicaudatus | species | 1 | 0 |
| south africa | limpopo province | helicotylenchus digonicus | species | 2 | 0 |
| south africa | limpopo province | helicotylenchus multicinctus | species | 2 | 0 |
| south africa | mpumalanga province | helicotylenchus dihystera | species | 2 | 0 |
| south korea | | helicotylenchus dihystera | species | 3 | 0 |
| south korea | | helicotylenchus microlobus | species | 10 | 0 |
| south korea | | helicotylenchus sp. d1-2 | species | 2 | 0 |
| south korea | | helicotylenchus sp. d1-3 | species | 2 | 0 |
| south korea | | helicotylenchus sp. d1-4 | species | 2 | 0 |
| south korea | | helicotylenchus sp. d18-1 | species | 1 | 0 |
| south korea | | helicotylenchus sp. d18-2 | species | 2 | 0 |
| south korea | | helicotylenchus sp. d18-3 | species | 2 | 0 |
| south korea | | helicotylenchus sp. d19-2 | species | 2 | 0 |
| south korea | | helicotylenchus sp. d19-3 | species | 2 | 0 |
| south korea | | helicotylenchus sp. d19-5 | species | 2 | 0 |
| south korea | | helicotylenchus sp. d5-4 | species | 1 | 0 |
| south korea | | helicotylenchus sp. v-2 | species | 1 | 0 |
| spain | | helicotylenchus broadbalkiensis | species | 3 | 0 |
| spain | | helicotylenchus digitiformis | species | 10 | 0 |
| spain | | helicotylenchus dihystera | species | 1 | 0 |
| spain | | helicotylenchus microlobus | species | 5 | 0 |
| spain | | helicotylenchus pseudorobustus | species | 44 | 0 |
| spain | canary islands | helicotylenchus multicinctus | species | 1 | 0 |
| sudan | | helicotylenchus multicinctus | species | 2 | 0 |
| sweden | | helicotylenchus minzi | species | 2 | 0 |
| sweden | | helicotylenchus varicaudatus | species | 4 | 0 |
| switzerland | | helicotylenchus pseudorobustus | species | 6 | 0 |
| thailand | | helicotylenchus dihystera | species | 1 | 0 |
| united kingdom | | helicotylenchus paxilli | species | 1 | 0 |
| united kingdom | england | helicotylenchus dihystera | species | 1 | 0 |
| united states | | helicotylenchus microlobus | species | 2 | 0 |
| united states | | helicotylenchus sp. 4i22g4 | species | 1 | 0 |
| united states | arizona | helicotylenchus microlobus | species | 1 | 0 |
| united states | california | helicotylenchus broadbalkiensis | species | 2 | 0 |
| united states | california | helicotylenchus dihystera | species | 2 | 0 |
| united states | california | helicotylenchus microlobus | species | 8 | 0 |
| united states | california | helicotylenchus paxilli | species | 2 | 0 |
| united states | california | helicotylenchus pseudorobustus | species | 14 | 0 |
| united states | california | helicotylenchus sp. ix-1 | species | 1 | 0 |
| united states | california | helicotylenchus sp. vii-2 | species | 2 | 0 |
| united states | california | helicotylenchus sp. vii-3 | species | 1 | 0 |
| united states | california | helicotylenchus sp. x-1 | species | 3 | 0 |
| united states | florida | helicotylenchus dihystera | species | 13 | 0 |
| united states | florida | helicotylenchus multicinctus | species | 1 | 0 |
| united states | florida | helicotylenchus paxilli | species | 7 | 0 |
| united states | florida | helicotylenchus sp. iii-3 | species | 1 | 0 |
| united states | florida | helicotylenchus sp. iv-2 | species | 2 | 0 |
| united states | georgia | helicotylenchus dihystera | species | 4 | 0 |
| united states | hawaii | helicotylenchus dihystera | species | 9 | 0 |
| united states | hawaii | helicotylenchus rotundicauda | species | 1 | 0 |
| united states | idaho | helicotylenchus digonicus | species | 2 | 0 |
| united states | idaho | helicotylenchus minzi | species | 13 | 0 |
| united states | iowa | helicotylenchus microlobus | species | 2 | 0 |
| united states | kansas | helicotylenchus digonicus | species | 8 | 0 |
| united states | kansas | helicotylenchus labiodiscinus | species | 6 | 0 |
| united states | kansas | helicotylenchus pseudorobustus | species | 2 | 0 |
| united states | kansas | helicotylenchus sp. i-5 | species | 1 | 0 |
| united states | kansas | helicotylenchus sp. i-8 | species | 2 | 0 |
| united states | nebraska | helicotylenchus digonicus | species | 2 | 0 |
| united states | nebraska | helicotylenchus leiocephalus | species | 2 | 0 |
| united states | nebraska | helicotylenchus platyurus | species | 2 | 0 |
| united states | nebraska | helicotylenchus pseudorobustus | species | 2 | 0 |
| united states | north carolina | helicotylenchus dihystera | species | 2 | 0 |
| united states | north dakota | helicotylenchus digonicus | species | 1 | 0 |
| united states | north dakota | helicotylenchus microlobus | species | 1 | 0 |
| united states | ohio | helicotylenchus pseudorobustus | species | 1 | 0 |
| united states | texas | helicotylenchus dihystera | species | 1 | 0 |
| united states | utah | helicotylenchus sp. 74h3 | species | 2 | 0 |
| united states | utah | helicotylenchus sp. 75g1 | species | 2 | 0 |
| united states | utah | helicotylenchus sp. 75g2 | species | 2 | 0 |
| united states | washington | helicotylenchus minzi | species | 4 | 0 |
| united states | washington | helicotylenchus pseudorobustus | species | 1 | 0 |
| vietnam | | helicotylenchus multicinctus | species | 4 | 0 |